| 摘要 |
PROBLEM TO BE SOLVED: To provide a rack housing having a reduced weight while maintaining strength and rigidity, in the rack housing for use in a rack-and-pinion type electric power steering device.SOLUTION: A cylindrical part and mounting parts of a rack housing are formed of a fiber-reinforced resin. A unidirectional prepreg or a fabric prepreg is wound around a metal core, the cylindrical part is then cured, cutting machining of at the outer diameter is performed to form the cylindrical part. Then, the mounting parts are formed at both ends of the cylindrical part by insert molding to form the rack housing. |
